The Kelsey Berreth murder trial took an unexpected turn this week after the Deputy District Attorney filed a motion requesting that records generated by the Teller County Department of Human Services be placed under seal. 'The records relate to the charged crimes in this case, and include extensive interviews documenting statements made by the Defendant and witnesses in this case,' wrote DDA Elizabeth Reed in her Motion for Disclosure and Protective Order. She then noted: 'The People believe these records contain either inculpatory or exculpatory information as it relates to the criminal allegations in this case.' That 'exculpatory information' is believed to be the claim that Berreth was an unfit mother, which was made by both Patrick Frazee and his mother to child services. Frazee's mistress, Krystal Kenney, had previously hinted at the substance of these claims when she revealed that the killer fiance told her that Berreth was abusive towards their daughter Kaylee and struggled with drug addiction. Both Frazee and his mother will be back in court on Thursday fighting for custody of Kaylee, who prosecutors claim was sitting in her playpen when Frazee bludgeoned Berreth to death with a baseball bat on Thanksgiving. Meanwhile, the landfill search for Berreth has entered day 46 with no reports of any remains being found, and Frazee set to formally enter his plea on Friday. Scroll down for video No leaks: The Deputy District Attorney who is trying Patrick Frazee for murder wants records generated by the Teller County Department of Human Services sealed (Frazee above leaving court in December) Sway: In her motion, filed last month but only released to the public this week (section above), DDA Elizabeth Reed claims the records contain 'exculpatory information' Dust: The search for Berreth's body continues with no word of any remains being found at a local landfill (above last month), and Frazee set to enter his plea on Friday This motion was filed at the same time as documents dealing how Kenney disposed of crucial evidence in the case. Kenney was tasked not only with cleaning up the gruesome murder scene, but also finding a way to get rid of the young mother’s personal effects. Legal filings submitted in early March state that Kenney did this by hurling Berreth’s keys into a gorge, burning both Berreth’s cell phone and the burner phone she used to communicate with Frazee and giving the victim’s gun to a relative. Kenney told authorities this after first denying she even knew who Berreth was, before eventually confessing to just how the 29-year-old pilot was brutally murdered on Thanksgiving as her daughter played in the next room. Filings submitted in the case show that Kenney eventually told authorities that, after watching Frazee burn his former fiance’s body in a giant fire on his mother’s ranch, she was sent home to Idaho with strict instructions to make sure a cell phone, gun and keys belonging to Berreth were either hidden or destroyed. Mom and daughetr: Frazee's mistress revealed that the killer fiance told her that Berreth was abusive towards their daughter Kaylee (above) The keys were the first piece of evidence Berreth disposed of, throwing them into one of the deep gorges at Malad Gorge State Park. The deep and steep cliff walls make most of the park inaccessible, while the raging rapids make a water search near impossible. Berreth’s phones were then burned by Kenney according to documents, but not before they provided investigators with a trail that lead from Frazee’s farm in Colorado to the home of Kenney’s friend in Idaho. Berreth’s phone last pinged in Idaho on November 25 at Malad Gorge, around the same time a woman with unknown ties to Kenney called Frazee's cell. That woman lives less than 10 miles from Maad Gorge. The woman, 39, has been employed in the medical field, so there is a chance she may have been a friend of Kenney's from work. Then, when Kenney returned home, she burned Berreth's phone and the burner she used to speak with Frazee. The charred remains of those two devices were then disposed of at the hospital where she worked before she was charged in the case. The final remaining piece of evidence - Berreth’s gun - was given by Kenney to a male friend. Kenney said that it belonged to a family member. Tainted love: Frazee (left) will formally enter his plea knowing that Kenney (right) is cooperating with the prosecution In addition to this, Kenney also texted Berreth's mother, Frazee and Berreth's place of employment during her drive home to Idaho 'with the intent of distracting law enforcement at the direction of Frazee.' These actions and her delay in sharing this information, which has dealt a devastating blow to prosecutors has now led some to question if Kenney should have been offered a plea deal by the state of Colorado. At the same time, because she is the only witness in the case, the verdict in the case now hinges entirely on her testimony. There is also still no trace of Berreth's remains. Kenney broke down in tears as she confessed to destroying Berreth's cell phone in court back in February. She also agreed to testify against Frazee at his murder trial. Kenney will be sentenced after Frazee's trial for her own involvement after pleading guilty to one felony count of tampering with evidence. All rights reserved for this news site dailymail and under his responsibility